1 files changed, 91 insertions, 0 deletions
diff --git a/clang/test/Sema/flexible-array-init.c b/clang/test/Sema/flexible-array-init.c
new file mode 100644
index 0000000..78fc7c5
--- /dev/null
+++ b/clang/test/Sema/flexible-array-init.c
@@ -0,0 +1,91 @@
+// RUN: %clang_cc1 -fsyntax-only -pedantic -verify %s
+struct one {
+  int a;
+  int values[]; // expected-note 4{{initialized flexible array member 'values' is here}}
+} x = {5, {1, 2, 3}}; // expected-warning{{flexible array initialization is a GNU extension}}
+
+struct one x2 = { 5, 1, 2, 3 }; // expected-warning{{flexible array initialization is a GNU extension}}
+
+void test() {
+  struct one x3 = {5, {1, 2, 3}}; // expected-error{{initialization of flexible array member is not allowed}}
+  struct one x3a = { 5 };
+  struct one x3b = { .a = 5 };
+  struct one x3c = { 5, {} }; // expected-warning{{use of GNU empty initializer extension}} \
+  // expected-warning{{flexible array initialization is a GNU extension}} \
+  // expected-warning{{zero size arrays are an extension}}
+}
+
+struct foo { 
+  int x; 
+  int y[]; // expected-note 8 {{initialized flexible array member 'y' is here}}
+}; 
+struct bar { struct foo z; }; // expected-warning {{'z' may not be nested in a struct due to flexible array member}}
+     
+struct foo a = { 1, { 2, 3, 4 } };        // expected-warning{{flexible array initialization is a GNU extension}}
+struct bar b = { { 1, { 2, 3, 4 } } };    // expected-error{{initialization of flexible array member is not allowed}}
+struct bar c = { { 1, { } } };            // // expected-warning{{flexible array initialization is a GNU extension}} \
+              // expected-warning{{use of GNU empty initializer extension}} \
+              // expected-warning{{zero size arrays are an extension}}
+struct foo d[1] = { { 1, { 2, 3, 4 } } };  // expected-warning{{'struct foo' may not be used as an array element due to flexible array member}} \
+              // expected-error{{initialization of flexible array member is not allowed}}
+
+struct foo desig_foo = { .y = {2, 3, 4} }; // expected-warning{{flexible array initialization is a GNU extension}}
+struct bar desig_bar = { .z.y = { } }; // expected-warning{{use of GNU empty initializer extension}} \
+  // expected-warning{{zero size arrays are an extension}} \
+  // expected-warning{{flexible array initialization is a GNU extension}}
+struct bar desig_bar2 = { .z.y = { 2, 3, 4} }; // expected-error{{initialization of flexible array member is not allowed}}
+struct foo design_foo2 = { .y = 2 }; // expected-error{{flexible array requires brace-enclosed initializer}}
+
+struct point {
+  int x, y;
+};
+
+struct polygon {
+  int numpoints;
+  struct point points[]; // expected-note{{initialized flexible array member 'points' is here}}
+};
+struct polygon poly = { 
+  .points[2] = { 1, 2} }; // expected-error{{designator into flexible array member subobject}}
+
+// PR3540
+struct X {
+  int a;
+  int b;
+  char data[];
+};
+
+struct Y {
+  int a:4;
+  int b:4;
+  int c;
+  int d;
+  int e;
+  struct X xs[]; // expected-warning{{'struct X' may not be used as an array element due to flexible array member}}
+};
+
+
+// PR8217
+struct PR8217a {
+  int  i;
+  char v[]; // expected-note 2 {{initialized flexible array member 'v' is here}}
+};
+
+void PR8217() {
+  struct PR8217a foo1 = { .i = 0, .v = "foo" }; // expected-error {{initialization of flexible array member is not allowed}}
+  struct PR8217a foo2 = { .i = 0 };
+  struct PR8217a foo3 = { .i = 0, .v = { 'b', 'a', 'r', '\0' } }; // expected-error {{initialization of flexible array member is not allowed}}
+  struct PR8217a bar;
+}
+
+typedef struct PR10648 {
+ unsigned long n;
+ int v[]; // expected-note {{initialized flexible array member 'v' is here}}
+} PR10648;
+int f10648() { 
+  return (PR10648){2, {3, 4}}.v[1]; // expected-error {{initialization of flexible array member is not allowed}}
+}
+
+struct FlexWithUnnamedBitfield { int : 10; int x; int y[]; }; // expected-note {{initialized flexible array member 'y' is here}}
+void TestFlexWithUnnamedBitfield() {
+  struct FlexWithUnnamedBitfield x = {10, {3}}; // expected-error {{initialization of flexible array member is not allowed}}
+}